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SLR-Report No.273

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Date:2000-08-09 14:45:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 273: Delft QL Report Week 32, 2000
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2000-08-09 14:45:00 UTC Message No. 273
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report Week 32, 2000


WEGENER-2 IERS


REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER
DELFT UNIVERSITY OF TECHNOLOGY
FACULTY OF AEROSPACE ENGINEERING
THE NETHERLANDS


WEEK 32, 2000


This is a weekly report, presenting the results of a continuing analysis of the
most recent global LAGEOS-1 and LAGEOS-2 quick-look laser ranging data. The
report consists of (A) a pass summary, (B) an overview of the analysis results,
detailed statistics of the analysed measurements, and an accumulative pass
overview and (C) the earth rotation parameter solutions submitted to IERS. The
report is based on all quick-look data as received until Mon, Aug 7, 2000.
Questions and comments should be addressed to:

K.F. Wakker
Delft University of Technology
Faculty of Aerospace Engineering
Delft Institute for Earth-Oriented Space Research
Kluyverweg 1
NL-2629 HS Delft
The Netherlands

Telephone: +31-(0)15-2782065/2785377
Telefax : +31-(0)15-2785322
E-mail : ron.noomen@deos.tudelft.nl


A. PASS SUMMARY

The table below gives an overview of the ranging data both on LAGEOS-1 and
LAGEOS-2, received by the Quick-Look Data Analysis Center (QLDAC) on Tue,
Aug 8, 2000. All data were obtained through NASA Crustal Dynamics Data
Information system (CDDIS) and the Eurolas Data Center (EDC) in Germany.
The data are unscreened and may span more than a week due to late reporting
by the stations.

------------------------------------------------------------------------------
Station System/Location Period No. of Passes
ID LAGEOS-1 LAGEOS-2
------------------------------------------------------------------------------
1893 Kazivili, Crimea, Ukraine 000728 - 000802 - 2
7080 McDonald Obs., Fort Davis, TX 000801 - 000807 3 5
7090 Yarragadee, Australia 000731 - 000806 13 5
7105 Greenbelt, Maryland 000731 - 000806 3 3
7110 Monument Peak, California 000801 - 000807 11 10
7124 Papeete, Tahiti 000807 - 000807 - 1
7231 Wuhan, China (new) 000731 - 000807 2 2
7237 Changchun, China 000731 - 000805 2 5
7403 Arequipa, Peru (TLRS-3) 000728 - 000807 6 8
7810 Zimmerwald, Switzerland 000731 - 000807 8 9
7811 Borowiec, Poland 000801 - 000806 1 1
7824 San Fernando, Spain 000731 - 000806 1 7
7835 Grasse, France 000731 - 000807 8 11
7836 Potsdam, Germany 000801 - 000806 1 3
7837 Shanghai Observatory, China 000731 - 000806 5 7
7838 Simosato Observatory, Japan 000803 - 000806 3 3
7839 Graz, Austria 000731 - 000802 8 8
7840 Herstmonceux, United Kingdom 000731 - 000807 11 8
7845 Grasse, France (LLR) 000731 - 000801 1 3
7849 Mount Stromlo, Australia 000731 - 000806 28 21
7939 Matera, Italy 000731 - 000804 1 3
8834 Wettzell, Germany 000731 - 000803 8 3
------ ------ --- ---
TOTAL 000728 - 000807 124 128
------------------------------------------------------------------------------


B. ANALYSIS RESULTS

The analysis is based on two orbit solutions using global quick-look normal
points that cover a period of 10 days which are computed simultaneously. This
week´s data interval runs from Thu, Jul 27, 2000, to Sat, Aug 5, 2000. The
measurement and dynamic models used in this analysis are close to the IERS
Standard. The overall model is referred to as QLDACMOD9. The details of this
model can be obtained on request. The terrestrial reference frame is provided
by a special version of the SSC(DUT) 93L05 station coordinates solution.

The general statistics and results of this week´s analysis are thus:

-----------------------------------------------------------------------
Satellite LAGEOS-1 LAGEOS-2
Number of Stations 18 21
Number of Passes 105/103 109/106
Number of Normal Points 1101/1074 1253/1218
RMS of Fit (mm) 31 38
-----------------------------------------------------------------------


Residual statistics per station. The header line for each station shows
the station ID, its name, whether the position is solved for or not and the
measurement accuracy in mm. Rejected observations are not used for the
calculation of the rms-of-fit, the biases or the scatter. The latter holds
w.r.t. the residual trend line described by the bias estimates. Bias
uncertainties are 3 sigma values.

--------------------------------------------------------------------------------
Date Time Sat. Obs. RMS Range Bias Time Bias Scatter
tot/rej (mm) (mm) (us) (mm)
--------------------------------------------------------------------------------
Station 1893 (Kazivili) (Position solved, acc. 100 mm)
1893 28 Jul 00 20:17 Lag2 10 0 10 4 +- 281 -3 +- 187 10
1893 2 Aug 00 18:39 Lag2 12 0 12 -1 +- 95 0 +- 100 12

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 1 Aug 00 01:47 Lag2 13 0 9 -9 +- 43 0 +- 41 1
7080 4 Aug 00 17:48 Lag2 1 0 16 0 +- 0 0 +- 0 0
7080 4 Aug 00 18:52 Lag1 9 0 7 5 +- 36 0 +- 43 5
7080 4 Aug 00 22:17 Lag1 6 0 14 -29 +- 156 -11 +- 104 2
7080 5 Aug 00 02:02 Lag2 4 0 14 -10 +- 593 -14 +- 354 2
7080 5 Aug 00 06:23 Lag2 10 0 13 9 +- 60 5 +- 63 2
7080 5 Aug 00 10:50 Lag1 17 0 16 -7 +- 27 -6 +- 16 2

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 31 Jul 00 18:36 Lag1 6 0 4 -2 +- 68 0 +- 30 3
7090 2 Aug 00 09:25 Lag1 17 0 8 1 +- 23 4 +- 14 4
7090 2 Aug 00 15:41 Lag2 12 0 33 5 +- 34 -29 +- 34 0
7090 2 Aug 00 16:05 Lag1 13 0 33 -34 +- 26 4 +- 21 2
7090 3 Aug 00 07:59 Lag1 22 0 44 -19 +- 20 19 +- 10 8
7090 3 Aug 00 11:33 Lag1 12 0 17 -3 +- 28 18 +- 31 1
7090 3 Aug 00 13:49 Lag2 10 0 31 12 +- 30 -27 +- 28 1
7090 3 Aug 00 14:53 Lag1 6 0 21 -20 +- 39 8 +- 46 0
7090 4 Aug 00 02:09 Lag2 5 0 75 31 +- 42 32 +- 20 3
7090 4 Aug 00 06:39 Lag1 19 0 20 -8 +- 22 10 +- 12 4
7090 4 Aug 00 10:13 Lag1 15 0 18 -9 +- 25 -8 +- 15 2
7090 4 Aug 00 13:45 Lag1 2 0 20 -21 +- 100 19 +-1125 0
7090 4 Aug 00 15:51 Lag2 20 0 30 9 +- 21 -20 +- 15 1
7090 4 Aug 00 16:53 Lag1 10 0 11 -10 +- 30 -1 +- 26 1

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 31 Jul 00 10:31 Lag1 12 0 25 17 +- 31 -20 +- 23 2
7105 5 Aug 00 07:21 Lag1 8 0 19 23 +- 88 -3 +- 67 2
7105 5 Aug 00 10:45 Lag1 13 0 48 -31 +- 32 -15 +- 22 2
7105 5 Aug 00 20:27 Lag2 9 0 31 -23 +- 114 32 +- 70 3

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 1 Aug 00 05:35 Lag2 23 0 10 -1 +- 20 2 +- 13 9
7110 1 Aug 00 09:16 Lag1 8 0 23 -27 +- 47 5 +- 40 3
7110 1 Aug 00 12:51 Lag1 10 0 16 -14 +- 34 7 +- 16 5
7110 2 Aug 00 03:39 Lag2 8 2 15 5 +- 45 -3 +- 32 13
7110 2 Aug 00 07:51 Lag2 6 0 19 18 +- 39 -11 +- 69 1
7110 2 Aug 00 11:25 Lag1 20 0 47 -41 +- 23 -6 +- 12 7
7110 3 Aug 00 05:49 Lag2 5 0 32 0 +- 293 -20 +- 178 0
7110 3 Aug 00 10:15 Lag1 12 0 21 -39 +- 51 18 +- 33 2
7110 3 Aug 00 13:41 Lag1 15 0 17 -16 +- 33 14 +- 20 3
7110 4 Aug 00 03:49 Lag2 8 0 20 -11 +- 38 -4 +- 17 9
7110 4 Aug 00 08:03 Lag2 8 0 9 8 +- 33 0 +- 66 1
7110 4 Aug 00 08:45 Lag1 5 0 22 21 +- 70 0 +- 176 2
7110 4 Aug 00 12:11 Lag1 11 1 22 -31 +- 49 -8 +- 32 2
7110 5 Aug 00 02:01 Lag2 20 1 66 -44 +- 24 -27 +- 20 8
7110 5 Aug 00 06:32 Lag2 8 0 5 -21 +- 261 11 +- 132 4
7110 5 Aug 00 10:49 Lag1 9 0 19 -18 +- 32 2 +- 13 5
7110 5 Aug 00 14:25 Lag1 13 0 16 -14 +- 29 -3 +- 25 3

Station 7231 (Wuhan) (Position solved, acc. 150 mm)
7231 31 Jul 00 14:47 Lag2 19 0 68 11 +- 107 2 +- 82 67
7231 1 Aug 00 20:31 Lag1 11 0 44 10 +- 175 -13 +- 118 42
7231 5 Aug 00 13:39 Lag2 12 0 52 -22 +- 254 11 +- 167 51

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 31 Jul 00 14:51 Lag2 18 0 6 0 +- 47 1 +- 41 6
7237 31 Jul 00 18:09 Lag1 11 0 40 -45 +- 59 20 +- 61 6
7237 1 Aug 00 12:51 Lag2 16 0 24 17 +- 44 6 +- 27 10
7237 2 Aug 00 15:03 Lag2 14 0 40 38 +- 47 3 +- 57 9
7237 2 Aug 00 18:59 Lag1 7 0 51 -49 +- 65 22 +- 103 4
7237 4 Aug 00 11:49 Lag2 5 0 495 54 +-1748 186 +- 740 12
7237 5 Aug 00 13:27 Lag2 13 0 495 483 +- 53 24 +- 49 13

Station 7403 (Arequipa) (Position fixed, acc. 10 mm)
7403 28 Jul 00 07:59 Lag1 12 0 3 0 +- 30 0 +- 19 3
7403 1 Aug 00 02:33 Lag2 7 0 24 21 +- 41 10 +- 99 3
7403 1 Aug 00 06:41 Lag2 11 0 10 0 +- 64 8 +- 54 1
7403 2 Aug 00 08:07 Lag1 20 0 39 30 +- 22 -19 +- 12 5
7403 2 Aug 00 08:46 Lag2 6 0 27 15 +- 71 -24 +- 142 3
7403 2 Aug 00 13:20 Lag2 4 0 13 1 +- 92 -22 +- 174 0
7403 3 Aug 00 02:41 Lag2 12 0 36 -35 +- 28 2 +- 38 6
7403 3 Aug 00 06:37 Lag2 4 0 18 41 +- 476 17 +- 353 3
7403 3 Aug 00 06:45 Lag1 20 0 11 10 +- 22 0 +- 12 3
7403 4 Aug 00 04:47 Lag2 15 0 22 2 +- 27 16 +- 21 2
7403 4 Aug 00 05:31 Lag1 6 0 72 62 +- 76 -13 +- 91 6
7403 4 Aug 00 08:55 Lag1 6 0 24 5 +- 138 -12 +- 92 0

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 31 Jul 00 10:11 Lag1 4 0 12 -3 +- 548 -5 +- 375 3
7810 31 Jul 00 10:24 Lag2 3 0 16 4 +- 679 12 +- 704 2
7810 31 Jul 00 13:13 Lag1 16 0 7 0 +- 50 -3 +- 28 4
7810 31 Jul 00 14:13 Lag2 6 0 25 -32 +- 114 20 +- 163 0
7810 31 Jul 00 18:08 Lag2 10 0 13 2 +- 63 6 +- 52 10
7810 31 Jul 00 22:05 Lag2 17 0 52 -49 +- 48 -7 +- 36 8
7810 1 Aug 00 08:35 Lag1 12 0 26 -26 +- 58 -2 +- 54 2
7810 1 Aug 00 12:15 Lag1 8 0 10 31 +- 220 -17 +- 119 2
7810 1 Aug 00 12:32 Lag2 2 0 76 107 +-1416 -18 +- 805 0
7810 1 Aug 00 15:37 Lag1 9 0 34 -39 +- 93 6 +- 56 6
7810 1 Aug 00 16:16 Lag2 9 0 75 4 +- 96 39 +- 52 6
7810 1 Aug 00 20:15 Lag2 21 0 23 -1 +- 48 14 +- 29 5

Station 7811 (Borowiec) (Position fixed, acc. 60 mm)
7811 1 Aug 00 20:33 Lag2 9 0 8 -12 +- 159 13 +- 124 3

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 31 Jul 00 22:17 Lag2 13 0 38 39 +- 44 -17 +- 44 12
7824 1 Aug 00 20:09 Lag2 23 0 13 -8 +- 31 -4 +- 21 8
7824 3 Aug 00 20:17 Lag2 14 0 14 -2 +- 102 -4 +- 58 13
7824 4 Aug 00 00:41 Lag2 10 0 25 -12 +- 85 -13 +- 97 9
7824 4 Aug 00 01:15 Lag1 10 0 41 28 +- 70 19 +- 84 6
7824 4 Aug 00 22:39 Lag2 18 0 25 -20 +- 37 -5 +- 30 10

Station 7835 (Grasse) (Position fixed, acc. 30 mm)
7835 31 Jul 00 09:51 Lag1 5 0 3 -8 +- 237 -4 +- 160 1
7835 31 Jul 00 13:43 Lag1 5 0 16 28 +- 547 -5 +- 232 1
7835 31 Jul 00 14:21 Lag2 8 0 7 -32 +- 202 16 +- 108 1
7835 31 Jul 00 18:03 Lag2 18 0 18 9 +- 30 -10 +- 23 1
7835 31 Jul 00 22:09 Lag2 16 0 34 -26 +- 34 -8 +- 23 6
7835 1 Aug 00 01:21 Lag1 10 0 18 17 +- 179 19 +- 99 2
7835 1 Aug 00 08:28 Lag1 10 0 21 -1 +- 45 13 +- 28 3
7835 1 Aug 00 11:58 Lag2 16 0 15 3 +- 31 5 +- 17 11
7835 1 Aug 00 15:23 Lag1 7 0 8 -7 +- 227 -8 +- 125 2
7835 1 Aug 00 16:41 Lag2 4 0 51 35 +-1027 7 +- 501 3
7835 1 Aug 00 20:05 Lag2 21 0 10 -5 +- 27 5 +- 16 3
7835 2 Aug 00 07:13 Lag1 13 0 21 21 +- 35 -2 +- 21 4
7835 2 Aug 00 18:25 Lag2 14 0 24 7 +- 34 -21 +- 29 3
7835 4 Aug 00 22:39 Lag2 16 0 13 -13 +- 33 8 +- 35 3
7835 5 Aug 00 20:39 Lag2 15 0 36 -5 +- 32 18 +- 16 4

Station 7836 (Potsdam) (Position fixed, acc. 30 mm)
7836 1 Aug 00 01:26 Lag1 13 0 12 -7 +- 36 10 +- 34 3
7836 1 Aug 00 20:31 Lag2 10 0 13 -6 +- 88 12 +- 65 7
7836 5 Aug 00 20:51 Lag2 3 0 22 -23 +- 220 -4 +- 566 1

Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm)
7837 31 Jul 00 15:08 Lag2 5 0 47 -34 +- 147 -22 +- 237 7
7837 1 Aug 00 13:27 Lag2 4 0 19 -26 +- 852 4 +- 482 3
7837 2 Aug 00 11:31 Lag2 6 0 82 -75 +- 570 -3 +- 318 3
7837 2 Aug 00 18:59 Lag1 4 0 67 -54 +- 692 7 +- 385 6
7837 4 Aug 00 15:23 Lag2 9 0 26 12 +- 61 -23 +- 79 4
7837 4 Aug 00 19:44 Lag1 6 0 25 -71 +- 311 -26 +- 160 5
7837 5 Aug 00 13:37 Lag2 6 0 23 -25 +- 81 7 +- 63 4
7837 5 Aug 00 18:27 Lag1 7 0 33 -36 +- 80 -6 +- 74 9

Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm)
7838 3 Aug 00 13:25 Lag2 18 0 17 22 +- 41 -7 +- 29 5
7838 3 Aug 00 17:23 Lag1 10 0 19 -35 +- 141 -10 +- 74 7
7838 4 Aug 00 11:29 Lag2 12 0 27 27 +- 37 -7 +- 41 6
7838 4 Aug 00 16:15 Lag1 9 0 15 -11 +- 42 0 +- 73 9
7838 5 Aug 00 13:47 Lag2 10 0 31 28 +- 97 1 +- 75 7

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 31 Jul 00 18:13 Lag2 21 0 29 34 +- 25 -7 +- 14 5
7839 31 Jul 00 22:07 Lag2 14 0 20 -14 +- 25 -10 +- 20 3
7839 1 Aug 00 01:21 Lag1 4 0 6 126 +-1000 58 +- 451 0
7839 1 Aug 00 05:19 Lag1 9 0 24 42 +- 74 -10 +- 34 1
7839 1 Aug 00 08:21 Lag1 16 0 17 15 +- 24 6 +- 14 3
7839 1 Aug 00 11:51 Lag1 15 0 35 33 +- 24 -4 +- 13 7
7839 1 Aug 00 12:00 Lag2 10 0 43 30 +- 30 15 +- 15 3
7839 1 Aug 00 15:31 Lag1 6 0 6 -9 +- 121 -3 +- 111 2
7839 1 Aug 00 16:11 Lag2 17 0 62 30 +- 24 30 +- 16 3
7839 1 Aug 00 20:05 Lag2 26 0 29 21 +- 19 10 +- 10 3
7839 2 Aug 00 03:39 Lag1 13 0 52 36 +- 26 -17 +- 13 6
7839 2 Aug 00 07:13 Lag1 14 0 35 35 +- 26 -10 +- 17 5
7839 2 Aug 00 10:23 Lag2 7 0 43 38 +- 37 -22 +- 28 1
7839 2 Aug 00 10:31 Lag1 13 0 20 12 +- 32 -12 +- 15 3
7839 2 Aug 00 14:29 Lag2 17 0 23 6 +- 41 10 +- 24 1
7839 2 Aug 00 18:22 Lag2 19 0 39 35 +- 22 -16 +- 13 4

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 31 Jul 00 09:53 Lag1 12 0 15 16 +- 33 -3 +- 21 5
7840 31 Jul 00 13:16 Lag1 18 0 14 11 +- 25 2 +- 14 6
7840 31 Jul 00 14:13 Lag2 12 0 11 -19 +- 60 9 +- 39 3
7840 31 Jul 00 17:07 Lag1 2 0 43 8 +-1229 77 +-1810 0
7840 31 Jul 00 17:59 Lag2 23 0 6 0 +- 22 -3 +- 14 4
7840 31 Jul 00 22:07 Lag2 16 0 35 -24 +- 28 -15 +- 23 3
7840 1 Aug 00 05:01 Lag1 17 0 9 0 +- 26 -4 +- 12 2
7840 1 Aug 00 12:17 Lag1 8 0 20 25 +- 92 -3 +- 55 2
7840 1 Aug 00 20:07 Lag2 17 0 13 -5 +- 26 7 +- 15 2
7840 2 Aug 00 03:39 Lag1 13 0 31 8 +- 30 -17 +- 18 4
7840 4 Aug 00 04:35 Lag1 6 0 7 3 +- 97 -1 +- 78 5
7840 4 Aug 00 14:51 Lag2 2 0 5 -86 +-1741 58 +-1126 0
7840 4 Aug 00 18:35 Lag2 17 0 9 -2 +- 28 -5 +- 21 3
7840 4 Aug 00 22:31 Lag2 13 0 21 -22 +- 30 3 +- 33 2
7840 5 Aug 00 03:05 Lag1 14 0 7 -3 +- 29 3 +- 17 2
7840 5 Aug 00 06:43 Lag1 11 0 12 -11 +- 32 -2 +- 21 3

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 31 Jul 00 13:09 Lag1 22 0 14 -13 +- 23 -2 +- 11 5
7845 31 Jul 00 14:19 Lag2 12 0 34 -80 +- 110 26 +- 55 2
7845 31 Jul 00 18:15 Lag2 16 0 31 -34 +- 34 5 +- 25 6
7845 1 Aug 00 16:35 Lag2 3 0 11 -68 +- 728 51 +- 481 2

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 31 Jul 00 05:03 Lag1 9 0 34 -33 +- 32 -2 +- 40 3
7849 31 Jul 00 08:23 Lag1 15 0 20 -21 +- 26 -7 +- 19 4
7849 31 Jul 00 11:49 Lag1 4 0 10 -7 +- 48 -4 +- 37 5
7849 31 Jul 00 11:57 Lag2 4 0 62 64 +- 49 -40 +- 200 3
7849 31 Jul 00 15:05 Lag1 18 0 11 -10 +- 22 -2 +- 13 4
7849 31 Jul 00 15:51 Lag2 13 0 16 -3 +- 35 -8 +- 22 1
7849 31 Jul 00 19:11 Lag1 2 0 6 152 +-2349 -87 +-1309 0
7849 31 Jul 00 23:59 Lag2 15 0 18 20 +- 29 4 +- 18 4
7849 1 Aug 00 03:45 Lag1 4 0 6 -5 +- 64 10 +- 93 3
7849 1 Aug 00 07:00 Lag1 4 0 19 -34 +- 307 -6 +- 134 3
7849 1 Aug 00 10:38 Lag1 7 0 16 10 +- 43 9 +- 47 3
7849 1 Aug 00 13:46 Lag2 6 0 39 28 +- 188 -7 +- 127 3
7849 1 Aug 00 14:05 Lag1 8 0 21 10 +- 89 7 +- 59 1
7849 1 Aug 00 17:15 Lag1 14 0 36 -28 +- 27 10 +- 19 5
7849 1 Aug 00 17:53 Lag2 17 0 17 -6 +- 24 12 +- 16 3
7849 1 Aug 00 22:09 Lag2 14 0 19 17 +- 26 8 +- 17 2
7849 2 Aug 00 02:13 Lag2 10 0 11 0 +- 30 12 +- 33 4
7849 2 Aug 00 05:43 Lag1 19 0 47 -41 +- 22 -8 +- 13 10
7849 2 Aug 00 09:15 Lag1 5 0 24 10 +- 138 -13 +- 128 1
7849 2 Aug 00 12:05 Lag2 9 0 31 16 +- 36 -40 +- 41 6
7849 2 Aug 00 12:33 Lag1 5 0 5 -6 +- 138 -10 +- 127 2
7849 2 Aug 00 15:51 Lag2 6 0 28 5 +- 55 -13 +- 29 3
7849 2 Aug 00 16:03 Lag1 8 0 12 -11 +- 35 0 +- 33 5
7849 2 Aug 00 19:39 Lag1 6 0 19 19 +- 39 7 +- 102 3
7849 2 Aug 00 20:13 Lag2 20 0 23 -6 +- 22 -16 +- 17 3
7849 3 Aug 00 00:17 Lag2 18 0 55 54 +- 22 -3 +- 17 7
7849 3 Aug 00 04:27 Lag1 12 0 26 -27 +- 28 7 +- 29 3
7849 3 Aug 00 11:17 Lag1 7 0 9 6 +- 36 -1 +- 36 7
7849 3 Aug 00 13:57 Lag2 10 0 35 25 +- 33 -11 +- 22 2
7849 3 Aug 00 14:43 Lag1 10 0 20 18 +- 34 2 +- 31 4
7849 3 Aug 00 18:31 Lag1 1 0 5 0 +- 0 0 +- 0 0
7849 3 Aug 00 18:37 Lag2 5 0 18 -15 +- 213 23 +- 146 1
7849 3 Aug 00 22:25 Lag2 5 0 42 15 +- 44 25 +- 26 1
7849 4 Aug 00 02:33 Lag2 7 0 21 18 +- 37 18 +- 99 2
7849 4 Aug 00 03:05 Lag1 8 0 16 13 +- 34 14 +- 67 2
7849 4 Aug 00 06:27 Lag1 17 0 37 -31 +- 23 -12 +- 13 6
7849 4 Aug 00 10:01 Lag1 10 0 27 7 +- 30 -24 +- 27 4
7849 4 Aug 00 12:09 Lag2 2 0 2 -18 +- 652 -12 +- 480 0
7849 4 Aug 00 13:27 Lag1 3 0 25 28 +- 64 78 +- 291 7
7849 4 Aug 00 16:09 Lag2 22 0 16 14 +- 20 -6 +- 15 1
7849 4 Aug 00 16:59 Lag1 12 0 13 -12 +- 69 0 +- 34 2
7849 4 Aug 00 20:27 Lag2 19 0 10 -2 +- 22 8 +- 18 2
7849 5 Aug 00 00:30 Lag2 7 0 30 61 +- 93 28 +- 68 4
7849 5 Aug 00 05:05 Lag1 12 0 15 -25 +- 48 -12 +- 30 2
7849 5 Aug 00 08:39 Lag1 17 0 21 -3 +- 23 -14 +- 17 3
7849 5 Aug 00 12:04 Lag1 1 0 37 0 +- 0 0 +- 0 0

Station 7939 (Matera) (Position fixed, acc. 120 mm)
7939 31 Jul 00 22:14 Lag2 12 0 193 18 +- 107 6 +- 98 192
7939 2 Aug 00 22:34 Lag2 12 0 122 -115 +- 136 58 +- 149 79
7939 3 Aug 00 20:48 Lag2 12 1 113 -33 +- 185 71 +- 156 95
7939 4 Aug 00 01:19 Lag1 7 1 175 194 +- 635 -115 +- 414 168

Station 8834 (Wettzell) (Position fixed, acc. 10 mm)
8834 31 Jul 00 06:17 Lag1 13 0 20 -27 +- 45 -7 +- 25 8
8834 31 Jul 00 13:15 Lag1 12 1 62 -59 +- 29 0 +- 17 19
8834 31 Jul 00 18:19 Lag2 11 0 59 -52 +- 45 -5 +- 30 7
8834 31 Jul 00 22:13 Lag2 12 0 58 -57 +- 28 -7 +- 37 3
8834 1 Aug 00 01:29 Lag1 9 0 39 -36 +- 49 3 +- 49 2
8834 1 Aug 00 05:00 Lag1 21 0 32 -29 +- 21 -1 +- 11 8
8834 1 Aug 00 08:26 Lag1 16 1 47 -44 +- 25 4 +- 17 11
8834 1 Aug 00 16:23 Lag2 9 0 38 -44 +- 47 25 +- 34 24
8834 2 Aug 00 07:07 Lag1 12 0 28 -26 +- 27 -5 +- 18 10
8834 2 Aug 00 10:55 Lag1 7 0 61 -81 +- 134 11 +- 73 5
8834 3 Aug 00 05:57 Lag1 12 0 39 -42 +- 29 15 +- 24 3
--------------------------------------------------------------------------------

Distribution of daytime, nighttime and twilight passes since Mar 1, 1900

--------------------------------------------------------------------------
Station System Period Number of Passes
LAGEOS-1 LAGEOS-2
Day/Night/Twil. Day/Night/Twil. Total
--------------------------------------------------------------------------
1864 MD2LAS 000401 - 000722 0/ 4/ 0 0/ 48/ 0 52
1884 RIGLAS 000412 - 000721 0/ 2/ 0 0/ 46/ 8 56
1893 CRMLAS 000508 - 000802 0/ 0/ 0 0/ 24/ 0 24
7080 MLRS25 000404 - 000807 53/ 16/ 12 29/ 60/ 8 178
7090 ML0514 000401 - 000806 36/157/ 18 94/ 67/ 9 381
7105 ML0725 000401 - 000806 34/ 12/ 6 16/ 68/ 6 142
7110 ML0414 000401 - 000807 73/ 45/ 14 26/135/ 12 305
7124 ML0819 000403 - 000807 2/ 47/ 2 3/ 27/ 5 86
7231 WUHA01 000426 - 000807 0/ 11/ 0 0/ 50/ 1 62
7237 CHALAS 000401 - 000805 0/ 11/ 0 0/ 76/ 0 87
7249 BEJLAS 000404 - 000610 0/ 3/ 0 0/ 35/ 0 38
7328 KOGLAS 000401 - 000724 13/ 2/ 0 4/ 3/ 0 22
7335 KASLAS 000401 - 000526 21/ 0/ 0 3/ 0/ 0 24
7337 MIULAS 000401 - 000508 5/ 0/ 1 2/ 0/ 0 8
7339 TATLAS 000401 - 000518 14/ 2/ 1 2/ 1/ 0 20
7403 TLRS3 000405 - 000807 2/ 32/ 2 11/ 29/ 1 77
7548 CAGLAS 000516 - 000705 0/ 0/ 0 0/ 17/ 0 17
7806 METLAS 000406 - 000506 0/ 2/ 0 0/ 5/ 0 7
7810 ZIMLAT 000430 - 000807 119/ 7/ 8 27/ 57/ 12 230
7811 POLLAS 000405 - 000806 0/ 2/ 0 0/ 42/ 0 44
7820 YSLR01 000401 - 000703 0/ 10/ 1 0/ 30/ 0 41
7824 SPNLAS 000401 - 000806 21/ 22/ 5 4/ 95/ 3 150
7831 HELLAS 000621 - 000628 0/ 0/ 0 0/ 4/ 0 4
7835 GRASSE 000401 - 000807 55/ 15/ 3 26/ 69/ 7 175
7836 GFZLAS 000403 - 000806 6/ 7/ 3 4/ 53/ 2 75
7837 CHILAS 000405 - 000806 0/ 21/ 3 0/ 48/ 1 73
7838 SHOLAS 000406 - 000806 5/ 13/ 1 0/ 32/ 1 52
7839 AUSLAS 000401 - 000802 67/ 15/ 4 19/ 70/ 13 188
7840 RGOLAS 000401 - 000807 128/ 9/ 5 41/ 56/ 15 254
7845 GRASLL 000405 - 000801 72/ 0/ 3 24/ 25/ 2 126
7849 MSLO01 000401 - 000806 54/201/ 22 138/ 86/ 16 517
7939 SAO102 000504 - 000804 0/ 3/ 0 0/ 27/ 0 30
8834 WLRS01 000401 - 000803 142/ 5/ 5 30/ 62/ 14 258
--------------------------------------------------------------------------


C. EARTH ROTATION PARAMETER SOLUTIONS FOR IERS

The following solutions for the polar motion and the UT1-UTC time difference
were also obtained in the 10-day data arc analysis described in the previous
section. Only solutions submitted to IERS are presented here.

--------------------------------------------------------------
DATE X Y UT1-UTC
(YYMMDD.D) (MAS) (MAS) (MS)
--------------------------------------------------------------
731.0 88.3 +/- 0.1 252.7 +/- 0.2 -31795.53 +/- 0.01
803.0 86.4 +/- 0.1 251.6 +/- 0.1 -31796.27 +/- 0.01
--------------------------------------------------------------

Comments:

1. This is a QLDAC analysis report in a new style. Although
our old report served quite well for observation campaigns, we have received
many requests to adjust our report to the current situation (i.e. a permanent
global SLR network with few mobile systems), and to spend more attention to
the quality of the data taken by the global network.
The most important element of the report is the table with statistics for
each individual data pass. Although the numbers will speak for themselves,
we must give a warning here that some of you may be disappointed to see that
their station appears to be suffering from a data problem. However, we are
using a model for station positions that is already 5 years old, and which
may be responsible for errors in the station position in the order of 1-5 cm.
We intend to introduce a new coordinates solution in the course of this
millennium.
Users of this report are invited to give suggestions for further improvements.



”/DGFI3/home/slreport/mbox” complete
From: Ron Noomen

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